S - Kam Ng PhD Dissertation Final.pdf - Digital Repository of CCEE ...

215CHAPTER 6: INTEGRATION OF CONSTRUCTION CONTROL ANDPILE SETUP INTO DESIGNNg, K. W. 1 ; Sritharan, S. 2 ; and Suleiman, M. T. 3A paper to be submitted to a journal6.1. AbstractThe main objective of this paper is to establish regional Load and Resistance FactorDesign (LRFD) recommendations for bridge pile designs, based on a historical PIle LOadTest (PILOT) database and 10 recently completed field tests. Resistance factors weredeveloped for the Wave Equation Analysis Program (WEAP) and CAse Pile Wave AnalysisProgram (CAPWAP) using the First Order Second Moment (FOSM) method. Compared withthe latest American Association of State Highway and Transportation Officials (AASHTO)(2010) recommendations, the regionally-calibrated resistance factors were improved forWEAP and CAPWAP. Using these calibrated results, the design and constructionefficiencies of piles were enhanced by minimizing the discrepancy between design and fieldpile resistances. This was achieved by integrating WEAP and CAPWAP as constructioncontrol methods as part of the design process. Furthermore, the effect of pile setup in a clayprofile, which was explicitly discussed in Chapters 3 and 4, was incorporated into the LRFDrecommendations to elevate the efficiency of bridge foundations attaining the economicadvantages of pile setup.CE Database Keywords: WEAP; PDA; CAPWAP; Dynamic Analysis Methods; ResistanceFactors; Efficiency Factor; Construction Control; Pile Setup; FOSM; LRFD._____________________________1 Ph.D. Candidate, Dept. of Civil, Construction and Environmental Engineering, Iowa State Univ.,Ames, IA 50011. E-mail: kwng@iastate.edu2 Wilson Engineering Professor and Associate Chair, Dept. of Civil, Construction and EnvironmentalEngineering, Iowa State Univ., Ames, IA 50011. E-mail: sri@iastate.edu3 Assistant Professor, Dept. of Civil and Environmental Engineering, Lehigh University, Bethlehem,PA, 18015. E-mail: mts210@lehigh.edu